Create a custom logger for jaeger

middlewares/tracing/jaeger/logger.go

@@ -0,0 +1,15 @@
+package jaeger
+
+import "github.com/containous/traefik/log"
+
+// jaegerLogger is an implementation of the Logger interface that delegates to traefik log
+type jaegerLogger struct{}
+
+func (l *jaegerLogger) Error(msg string) {
+	log.Errorf("Tracing jaeger error: %s", msg)
+}
+
+// Infof logs a message at debug priority
+func (l *jaegerLogger) Infof(msg string, args ...interface{}) {
+	log.Debugf(msg, args...)
+}